Rasat, The First Earth Observation Satellite Manufactured in Turkey, to be

[cabatli_53]

TÜBİTAK Space Technologies Research Institute (TÜBİTAK UZAY) sends RASAT funded by State Planning Organization, the first observation satellite designed and manufactured in Turkey, to the space in 2011.

All design, manufacture and test phases of RASAT are carried out by Turkish people and the project aims to testing the satellite systems designed and developed by TÜBİTAK UZAY in the space and providing these systems with a heritage so that they can be used in other national satellite missions in the future. The satellite images provided by RASAT will also be used in urban and regional planning, forestry, agriculture, disaster monitoring and for other similar purposes.

RASAT, which is produced to show our capacity to build a satellite and to obtain satellite images, is scheduled to be launched with the Dnepr launch vehicle operated by International Space Company Kosmotras (ISCK). The launch operation will be carried out from the Yasny Launch Base in Orenburg region in Southeast Russia. RASAT spacecraft will be one of the satellites participating in a cluster launch.

The launch will be carried out with the Dnepr launch vehicle developed on the basis of the world’s most powerful intercontinental ballistic missile SS-18 Dnepr is known to be one of the most precise and efficient launch vehicles used for mini satellite launches into low orbits. More than 160 launches of SS-18 rockets have been performed in the process of their creation and operation; 13 launches out of this number were accomplished under Dnepr program. The launch operation in which RASAT will also participate is planned to be the Dnepr launch vehicle’s 17th launch intended to carry a satellite.

TÜBİTAK UZAY, which makes significant contribution to the improvement of Turkey’s potential in production of advanced technology with the RASAT satellite.

Short URL: Rasat, The First Earth Observation Satellite Manufactured in Turkey, to be Launched !! | TR Defence

 

[cabatli_53]

Bilsat E/O:22m resolution (2003)
Rasat E/O:7.5m resolution (2011)
Gokturk-2 E/O: 2.5m resolution (2011)
Gokturk-1 E/O: Below 0.5-0.8m resolution (2013) (With Italian partner)
Gokturk-3 SAR satellite: 2014
Gokturk-4(?): Early Warning satellite (2016)


Turkey develops in space technologies step by step...

TUBITAK is coordinating the National Space Research Programme
together with other space stakeholders and will be responsible for its
implementation. In the first five years since the National Space Research
Programme was adopted around 450 R&D projects have been proposed by
Turkish organizations, costing in the region of 500 million USD.
There are two projects, at this stage, worth mentioning, namely
RASAT and Göktürk-2 projects. RASAT, having a high-resolution optical
imaging system and new modules developed by Turkish engineers, will be
the first Earth-observation satellite to be designed and manufactured in
Turkey. Göktürk-2 project, on the other hand, is the first step in the formation
of facility, equipment and personnel infrastructure and in meeting the future
satellite requirements locally. You could find information on these projects at
our stand in the space exhibition area.

http://www.tubitak.gov.tr/tubitak_c...sayfa_haberleri/UNCOPUOSspeech-Turkey2011.pdf

 

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TECHNICAL SPECIFICATIONS

Turkish EO Satellite: RASAT

Weight: 93 kg
Orbit: 700 km circular, sun synchronous
Attitude control: 3 axis stabilised
Orbital cycle: 98.8 min
Local equator crossing time: 10:30
Spatial resolution Panchromatic: 7.5 m
Multispectral: 15 m
Expected life time: 5 years
Spectral resolution (m): 0.42 0.73 (Panchromatic)
Band 1: 0.42 0.55 (Blue)
Band2 : 0.55 0.58 (Green)
Band3: 0.58 0.73 (Red)
Radiometric resolution: 8 bit
Temporal resolution: 4 days
Swath width: 30 km
Payloads:
Optical payload: It comprises a pushbroom type imager with stereoviewing capability.
BiLGE: Flight computer with the capability to utilize Spacewire.
GEZGiN-2: New generation image processor capable of high-speed multi-spectral image. compression using the JPEG2000 algorithms with encryption capabilities
X-Band Transmitter Module: Communication system with 100 Mb/s downlink at 7W output

Satellite Sub-Systems

GEZGİN-2
The new version of the real-time JPEG2000 image compression system, GEZGİN, that will also include total integration of JPEG2000 algorithm and new image processing and encryption capabilities.

X-BANT Communication System
Communication system designed for low earth orbit spacecraft to provide a 100 Mb/s downlink at 7W output using an efficient power amplifier.

BİLGE: (Flight Computer)
A flight computer for use in space missions that require high performance, with the capability to utilize Spacewire, which is a high-speed data bus standard advocated by the European Space Agency (ESA).

Image Archiving, Browsing and Processing System
A system to archive images downloaded from satellites, allowing browsing through the images and processing at various levels.

ÇOBAN (Multi Band Camera)

An eight-band multispectral camera with a ground sampling distance of 120 m.

PURPOSE
To produce a camera system that operates in multi-spectral region being a payload for BİLSAT-1 satellite which was designed by Turkish engineers.


RASAT X-Band Transmitter

It is designed as a communication subsystem of a LEO Remote Sensing Satellite at 700 km altitude. Analog, digital and RF subsystems are designed and implemented. Power amplifier of the transmitter is designed with high power efficiency for satellite applications. The system is CCSDS compatible.

Specifications :

Center frequency : 8.23 GHz
Modulation : QPSK-OQPSK
Data rate : 25/50/100 Mbps
FEC: RS & Convolutional
Output power : 7 W (38.5 dBm)
Efficiency : 25-30 %

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The main aim of the RASAT experimental satellite program is to develop satellite subsystems such as Gezgin, Coban, Bilge, TAI Donence...etc to apply them into Gokturk series satellites.

 

[Archdemon]

Gokturk-1 E/O: Below 0.5-0.8m resolution (2013) (With Italian partner)

 

[silko]

Gokturk-1 E/O: Below 0.5-0.8m resolution (2013) (With Italian partner)

perfectionist! you did it, you found the mistake congrats!

 

[cabatli_53]

Gokturk-1 E/O: Below 0.5-0.8m resolution (2013) (With Italian partner)

Some source states Gokturk-1 satellite will have a camera less than 0.8m resolution, Some others states 0.5m. Nothing wrong with it.

 

[cabatli_53]

 

[cabatli_53]

That is what i find amusing, below 0.5-0.6-0.7-0.8-0.9.....

Do not pollute Turkish defence industry related threads with such nonsense discussions.


Rasat (7.5m)

Gokturk-2 (2.5m)

Gokturk-1 (less than 0.8m)

 

[Saithan]

Don't pay attention to that troll. It's great to see that Turkey has built their first satellite no matter what it's specs are. If we compare the spec of the first satellite built by countries capable of building satellites with the spec of our first satellite then I don't think it's so bad.

however I do like the part where it says "Biz yaptik!"

 

[damm1t]

We got the signal!
RASAT has been launched succesfully and the TUBITAK-UZAY team announced that they got the first signal from satellite.
Congrats guys

 

[Saithan]

We got the signal!
RASAT has been launched succesfully and the TUBITAK-UZAY team announced that they got the first signal from satellite.
Congrats guys

Thank you for keeping us updated damm1t, milletimize hayirli ugurlu olsun (may it be fruitful for our nation).

 

[Safriz]

congratulations

 

[silko]

it is nice to hear, as saithan said. milletimize hayirli olsun, but one thing keeps annoying me. that we can't launch this in turkey with turkish launchpads and that. will we be able to do this in the future?

 

[fd24]

Congrats to our Turkish brothers.

 

[avrasya]

it is nice to hear, as saithan said. milletimize hayirli olsun, but one thing keeps annoying me. that we can't launch this in turkey with turkish launchpads and that. will we be able to do this in the future?

First, satellite and launching totally different technologies.
Second, Along with our sattalite some other satelites are launched with same rocket. This means reduced cost.

We need satelite tech right now. We dont need rocket tech.